playing multiple notes

So I have a list of frequencies with some I would like to combine together into one sound. There are zeros in the data to distinguish one group from another. For example: 230 120 440 0 68 32 0 …
The problem is that each group contains different numbers of frequencies and this variability makes it harder to have a universal way to combine each group. Is there a way to somehow store each group and then output it together as one sound, and then use some delay to play each group by itself?

the list is being read from a text file that is already prepared, and say I have a 4 frequencies like 220 440 650 330, I want to play them at the same time like a chord on a piano. The zeroes in the list would separate each "group". However each group has different number of frequencies like one might have 2 while another will have 4. So is there a way to play them like a chord except I don’t know how many notes there will be exactly each time?

How are you going to trigger the next group if they are all coming from one long list? Is it going to be after a set interval or will you want a [button] to trigger the next one manually? Or something completely different?

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you need to first feed teh list, then each bang you send to [zl queue] will give you one "group" that was separated by a 0. One after the other, and only once each group – if you want to resend everything from start you need to re send the list.